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2 years ago

HELP HELP HELPPPP OMG

Mathematics

1 answer:

Andru [333]2 years ago

7 0

Answer:

hope it helps you.............!

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What is the volume of 10 2 in 5.5in

svetlana [45]

Answer:

110 in³

Step-by-step explanation:

The volume of a rectangular prism is the product of its dimensions:

V = LWH

V = (10 in)(2 in)(5.5 in) = 110 in³

5 0

2 years ago

the thickness of a surfboard relates to the weight of the surfer. A surfboard is 21 3/16 inches wide and 2 3/8 inches thick. Wri

Mrac [35]

21 3/16=21.1875
2 3/8=2.375

7 0

2 years ago

Given f(x) =3x+7 find f(5)

ra1l [238]

Answer:

Step-by-step explanation:

f (5)=3 (5)+7

f (5)=15+7

f (5)=22

8 0

3 years ago

Find the value of x pls help

4vir4ik [10]

Answer:

x = 15°

Step-by-step explanation:

First Identify the angle of x by subtracting 180° - 120° = 60°

Always remember when you see a straight line the line measures 180°

So the angle of x = 60° but not the value of x so use the given equation to find the value of x

3x + 15 = 60°

3x - 15 = -15°

3x = 45

x = 15°

7 0

2 years ago

A marketing research company desires to know the mean consumption of milk per week among people over age 32. A sample of 440 peo

Softa [21]

Answer:

The 98% confidence interval for the mean consumption of milk among people over age 32 is between 3.3 and 3.5 liters.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.98}{2} = 0.01$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.01 = 0.99$ , so Z = 2.327.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 2.327\frac{0.8}{\sqrt{440}} = 0.1$

The lower end of the interval is the sample mean subtracted by M. So it is 3.4 - 0.1 = 3.3 liters

The upper end of the interval is the sample mean added to M. So it is 3.4 + 0.1 = 3.5 liters

The 98% confidence interval for the mean consumption of milk among people over age 32 is between 3.3 and 3.5 liters.

7 0

2 years ago